The document discusses the growing opportunity presented by mobile devices. It notes that there are now over 5 billion mobile phone users worldwide and mobile phone adoption is the fastest moving industry in history. It also discusses the growing popularity of smartphones, tablets, and apps. Key statistics provided include there being over 120 million iPhone, iPod Touch, and iPad users, and that 50 million tablets are projected to be sold in 2011. The document argues that businesses should focus on apps and the mobile experience as mobile apps now account for 50% of mobile internet traffic. It also provides examples of business models that are working well on mobile like sponsorship, exclusive deals, advertising, and paywalls.